Having trouble with IK bones
I know you probably know the answer already since this was at May 15th.. But anyway.

The IK should not have any properties. The only ones should have properties with IK's would be the [Lower leg]/[calf] bones and the [lower arm]/[forearm] bones. There are many types of ways to use IK's but you only have them present for the forearm and calf bones. Make sure that they are not parented to the bone that is trying to use its IK. Also under the IK constraint, be sure to have an IK chain length of two. Sometimes you can add the shoulder bone or hips with a three chain but gives odd movements. Also arm IK's also work great with pole bones. Either elbows or knees. I suggest a blender IK rig tutorial.